The specific heat capacity of silver is 0.24 J-g^-1 degree C^-1, What amount of

Question

The specific heat capacity of silver is 0.24 J-g^-1 degree C^-1, What amount of energy is require to raise the temperature of 12.4 (grams of silver from 20 degree C to 35 degree C at constant pressure? A 45.50-gram sample of ammonium iodide is dissolved in 1.20 liters of water in a colorimeter that has u total heat capacity of 4.53 kJ middot K^-1 The temperature decreases 0.951 K. calculate the heal of solution of ammonium iodide as J-g^-1. Determine Delta H_ for the reaction described by the equation. 2 H_2S(g) + 3 O_2(g) rightarrow 2 H_2O(l) + 2SO_2(g)

Explanation / Answer

2. The specific heat is the amount of heat per unit mass required to raise the temperature bu one degree celsius.The relationship between heat and temperature chnage is usually expressed in the form:

Q(heat added) = c(specific heat) * m(mass) *chnage in temperature in degree celsius

q = 0.24 J/g 0C * 12.4 g * (35-20) 0C

q = 0.24 J*12.4*150C = 44.64 Joules

3.

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