Answer:
a) 47.632 J , 11.384 cal/ °C
b) 406.87 J , 97.246 cal / ˚C
Explanation:
Given;
a) 45.8 g of nitrogen gas
Heat capacity per degree = mass × Specific heat
the specific heat of Nitrogen gas = 1.04 J/g
thus,
The Heat capacity of 45.8g Nitrogen gas = 45.8 × 1.04 = 47.632 J
also,
1 calorie = 4.184 J
therefore,
Heat capacity in calories = 47.632 J × (1 cal / 4.184 J) = 11.384 cal/ °C
b) 1.00 pound of aluminium metal
We know, 1 pounds = 453.59237 grams
thus,
Heat capacity per degree = mass × Specific heat
Specific heat of the Aluminium = 0.897 J/g
therefore,
Heat capacity per degree = 453.6 × 0.897 = 406.87 J
and in calories per degree
Heat capacity = 406.87 × (1 cal / 4.184 J) = 97.246 cal / ˚C
