Answer: 5040 joules
Explanation:
How much energy is released when 150g of silver cools from 220°C to 80°C?
Given the following :
Mass (m) of silver = 150g
Change in temperature (ΔT) = (220 - 80)°C = 140°C
Q=mcΔT
Where Q = quantity of heat
m = mass of silver ; c = specific heat capacity
Specific heat capacity of silver = 0.240 j/g°C
Q = (150 * 0.240 * 140)
Q = 5040J
Answer:
poverty has limited life expectancy in developing countries
Explanation:
