Question

How much heat is required, in calories, to raise the temperature of 57.8 grams of silver from 17.0 C to 43.5 C, if the specific heat of silver = 0.057 cal/gC ?

Answer 1

Answer:

$Q = 87.307\,cal$

Explanation:

The heat required to raise temperature is determined with the help of the First Law of Thermodynamics:

$Q = m\cdot c \cdot \Delta T$

$Q = (57.8\,g)\cdot \left(0.057\,\frac{cal}{g\cdot ^{\circ}C} \right)\cdot (43.5^{\circ}C-17^{\circ}C)$

$Q = 87.307\,cal$

Answer 2

Answer:

Q = 87.31cal

Explanation:

Mass = 57.8g

T1 = 17.0°C

T2 = 43.5°C

Specific heat capacity (c) = 0.057cal/g°C

Q = MC∇T

Q = M*C*(T₂ - T₁)

Q = 57.8 * 0.057 * (43.5 - 17.0)

Q = 3.2946 * 26.5

Q = 87.306 cal

Q = 87.31cal