temperature Heating curves and DH added energy Heating

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temperature Heating curves and DH added energy

temperature Heating curves and DH added energy

Heating curves and DH temperature gas liquid solid added energy

Heating curves and DH temperature gas liquid solid added energy

Heating curves and DH melting/ freezing pt temperature gas liquid solid added energy

Heating curves and DH melting/ freezing pt temperature gas liquid solid added energy

Heating curves and DH melting/ freezing pt gas temperature boiling/ cond. pt liquid solid

Heating curves and DH melting/ freezing pt gas temperature boiling/ cond. pt liquid solid added energy

Heating curves and DH melting/ freezing pt gas temperature boiling/ cond. pt melting/freezing occurring

Heating curves and DH melting/ freezing pt gas temperature boiling/ cond. pt melting/freezing occurring here boiling/condensing occurring here liquid solid added energy

How is the total enthalpy change (DH) calculated for a substance whose temperature change

How is the total enthalpy change (DH) calculated for a substance whose temperature change includes a change in state?

temperature Dt of solid absorbing energy added energy

temperature Dt of solid absorbing energy added energy

temperature DH = m x Csolid x Dt added energy

temperature DH = m x Csolid x Dt added energy

temperature the energy absorbed as a solid melts becomes potential energy, so no Dt

temperature the energy absorbed as a solid melts becomes potential energy, so no Dt DH = m x Csolid x Dt added energy

temperature DH = DHfus x # mols DH = m x Csolid x Dt

temperature DH = DHfus x # mols DH = m x Csolid x Dt added energy

temperature DH = DHfus x # mols DH = m x Csolid x Dt

temperature DH = DHfus x # mols DH = m x Csolid x Dt added energy Dt of liquid absorbing energy

temperature DH = DHfus x # mols DH = m x Csolid x Dt

temperature DH = DHfus x # mols DH = m x Csolid x Dt added energy DH = m x Cliquid x Dt

temperature the energy absorbed as a liquid boils becomes potential energy, so no Dt

temperature the energy absorbed as a liquid boils becomes potential energy, so no Dt DH = DHfus x # mols DH = m x Cliquid x Dt DH = m x Csolid x Dt added energy

temperature DH = DHvap x # mols DH = DHfus x # mols DH

temperature DH = DHvap x # mols DH = DHfus x # mols DH = m x Cliquid x Dt DH = m x Csolid x Dt added energy

Dt of gas absorbing energy temperature DH = DHvap x # mols DH =

Dt of gas absorbing energy temperature DH = DHvap x # mols DH = DHfus x # mols DH = m x Cliquid x Dt DH = m x Csolid x Dt added energy

DH = m x Cgas x Dt temperature DH = DHvap x # mols

DH = m x Cgas x Dt temperature DH = DHvap x # mols DH = DHfus x # mols DH = m x Cliquid x Dt DH = m x Csolid x Dt added energy

DH = m x Cgas x Dt temperature DH = DHvap x # mols

DH = m x Cgas x Dt temperature DH = DHvap x # mols DH = DHfus x # mols DH = m x Cliquid x Dt DH = m x Csolid x Dt added energy

The DH of any substance being heated will be the sum of the DH

The DH of any substance being heated will be the sum of the DH of any Dt occurring plus DH = m x Cgas x Dt DH of any phase change occurring temperature DH = DHvap x # mols DH = DHfus x # mols DH = m x Cliquid x Dt DH = m x Csolid x Dt added energy

The DH of any substance being heated will be the sum of the DH

The DH of any substance being heated will be the sum of the DH of any Dt occurring plus DH = m x Cgas x Dt DH of any phase change occurring temperature DH = DHvap x # mols DH = DHfus x # mols DH = m x Cliquid x Dt DH = m x Csolid x Dt added energy

EXAMPLE: What is DH for 10 g water with a total Dt from -20

EXAMPLE: What is DH for 10 g water with a total Dt from -20 o. C t DH = m x Cgas x Dt temperature DH = DHvap x # mols DH = DHfus x # mols DH = m x Cliquid x Dt DH = m x Csolid x Dt added energy

temperature EXAMPLE: What is DH for 10 g water with a total Dt from

temperature EXAMPLE: What is DH for 10 g water with a total Dt from -20 o. C t 50 o. C -20 o. C added energy

What is DH for 10 g water with a total Dt from -20 o.

What is DH for 10 g water with a total Dt from -20 o. C t use the following values: Cice = 2. 1 J/goc, DHfus H 2 O = 6. 01 k. J/mol, CH 2 O liq = 4. 186 temperature EXAMPLE: 50 o. C -20 o. C added energy

What is DH for 10 g water with a total Dt from -20 o.

What is DH for 10 g water with a total Dt from -20 o. C t use the following values: Cice = 2. 1 J/goc, DHfus H 2 O = 6. 01 k. J/mol, CH 2 O liq = 4. 186 temperature EXAMPLE: 50 o. C DH 2 = DHfus x # mols 0 o. C DH 1 = m x Csolid x Dt -20 o. C added energy DH 3 = m x Cliquid x Dt

What is DH for 10 g water with a total Dt from -20 o.

What is DH for 10 g water with a total Dt from -20 o. C t use the following values: Cice = 2. 1 J/goc, DHfus H 2 O = 6. 01 k. J/mol, CH 2 O liq = 4. 186 temperature EXAMPLE: 50 o. C DH 2 = DHfus x # mols 0 o. C DH 3 = m x Cliquid x Dt DH 1 = 10 g x 2. 1 J/go. C x 20 o. C -20 o. C added energy

What is DH for 10 g water with a total Dt from -20 o.

What is DH for 10 g water with a total Dt from -20 o. C t use the following values: Cice = 2. 1 J/goc, DHfus H 2 O = 6. 01 k. J/mol, CH 2 O liq = 4. 186 temperature EXAMPLE: 50 o. C DH 2=10 g x 1 mol/18 g x 6. 01 k. J/mol DH 3 = m x Cliquid x Dt 0 o. C DH 1 = 10 g x 2. 1 J/go. C x 20 o. C -20 o. C added energy

What is DH for 10 g water with a total Dt from -20 o.

What is DH for 10 g water with a total Dt from -20 o. C t use the following values: Cice = 2. 1 J/goc, DHfus H 2 O = 6. 01 k. J/mol, CH 2 O liq = 4. 186 EXAMPLE: temperature DH 3 = 10 g x 4. 186 J/go. C x 50 o. C DH 2=10 g x 1 mol/18 g x 6. 01 k. J/mol 0 o. C DH 1 = 10 g x 2. 1 J/go. C x 20 o. C -20 o. C added energy

What is DH for 10 g water with a total Dt from -20 o.

What is DH for 10 g water with a total Dt from -20 o. C t use the following values: Cice = 2. 1 J/goc, DHfus H 2 O = 6. 01 k. J/mol, CH 2 O liq = 4. 186 EXAMPLE: temperature total DH = DH 1 + DH 2 + DH 3 = 10 g x 4. 186 J/go. C x 50 o. C DH 2=10 g x 1 mol/18 g x 6. 01 k. J/mol 0 o. C DH 1 = 10 g x 2. 1 J/go. C x 20 o. C -20 o. C added energy

What is DH for 10 g water with a total Dt from -20 o.

What is DH for 10 g water with a total Dt from -20 o. C t use the following values: Cice = 2. 1 J/goc, DHfus H 2 O = 6. 01 k. J/mol, CH 2 O liq = 4. 186 EXAMPLE: temperature total DH = DH 1 + DH 2 + DH 3 = 420 J + 3340 J + 2093 J DH 3 = 10 g x 4. 186 J/go. C x 50 o. C DH 2=10 g x 1 mol/18 g x 6. 01 k. J/mol 0 o. C DH 1 = 10 g x 2. 1 J/go. C x 20 o. C -20 o. C added energy

What is DH for 10 g water with a total Dt from -20 o.

What is DH for 10 g water with a total Dt from -20 o. C t use the following values: Cice = 2. 1 J/goc, DHfus H 2 O = 6. 01 k. J/mol, CH 2 O liq = 4. 186 EXAMPLE: temperature total DH = DH 1 + DH 2 + DH 3 5853 J = 420 J + 3340 J + 2093 J DH 3 = 10 g x 4. 186 J/go. C x 50 o. C DH 2=10 g x 1 mol/18 g x 6. 01 k. J/mol 0 o. C DH 1 = 10 g x 2. 1 J/go. C x 20 o. C -20 o. C added energy

EXAMPLE: What is DH for 10 g water with a total Dt from -20

EXAMPLE: What is DH for 10 g water with a total Dt from -20 o. C t temperature It takes 5853 joules to heat up 10 grams of water from -20 o. C to +50 o. C. DH 3 = 10 g x 4. 186 J/go. C x 50 o. C DH 2=10 g x 1 mol/18 g x 6. 01 k. J/mol 0 o. C DH 1 = 10 g x 2. 1 J/go. C x 20 o. C -20 o. C added energy

EXAMPLE: What is DH for 10 g water with a total Dt from -20

EXAMPLE: What is DH for 10 g water with a total Dt from -20 o. C t temperature It takes 5853 joules to heat up 10 grams of water from -20 o. C to +50 o. C. DH 3 = 10 g x 4. 186 J/go. C x 50 o. C DH 2=10 g x 1 mol/18 g x 6. 01 k. J/mol 0 o. C DH 1 = 10 g x 2. 1 J/go. C x 20 o. C -20 o. C added energy

EXAMPLE: What is DH for 10 g water with a total Dt from -20

EXAMPLE: What is DH for 10 g water with a total Dt from -20 o. C t temperature It takes 5853 joules to heat up 10 grams of water from -20 o. C to +50 o. C. 50 o. C -20 o. C 5853 J added energy

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