How much heat is required to raise the temperature of

12.0

g

of water from

-

35

°C

to

175

°C?

heat:

kcal

Question

Chemistry

Dario Stein

21 January, 03:35

How much heat is required to raise the temperature of

12.0

g

of water from

-

35

°C

to

175

°C?

heat:

kcal

+4

Answers (1)

Know the Answer?

Carmen Whitney · Answer 1

Q = 1.68 Kcal

Explanation:

Q = mCpΔT

∴ m H2O = 12.0 g

∴ T1 = 35°C ≅ 308 K

∴ T2 = 175°C ≅ 448 K

∴ ΔT = T2 - T1 = 175 - 35 = 140 °C

∴ Cp H2O = 1 cal / g.°C

⇒ Q = (12.0 g) (1 cal/g°C) (140 °C)

⇒ Q = (1680 cal) * (Kcal/1000 cal)

⇒ Q = 1.68 Kcal

How much heat is required to raise the temperature of12.0gof water from-35°Cto175°C?heat:kcal

How much heat is required to raise the temperature of

12.0

g

of water from

-

35

°C

to

175

°C?

heat:

kcal