Question

3. What mass of lead (Pb) is needed to absorb 54,000 calories of energy if its

temperature is to increase only by 2.5°C? (c = 0.128 J/g°C)

Answer 1

706.05 kg

Step-by-step explanation:

convert calories to joules:

54,000cal -> 225,936j

convert word problem to math:

225936j / (x*2.5C)=.128 j/gC

find x

x=706050 grams