5g of copper was heated from 20- to 80- How much energy was used to heat Cu- Specific heat capacity of Cu is 0-092 cal-g -C-

The latent heat of fusion of solid water at $0^{\circ}$ is $80 c a l / g$ . How much heat is required to convert $4 g$ of ice at $0^{\circ}$ C to water at $0^{\circ}$ C ?

How much heat is absorbed by a 20 g granite piece as energy from the sun causes its temperature to change from 10C to 29C ( specif heat capacity of granite is 0.1 cal g-1 C-1

Q. The amount of heat required to convert

5 g

of ice at

0^{o} C

into water at

40^{o} C

is (Take heat of fusion

= 80 c a l / g

, specific heat

= 1 c a l / g

) :

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5g of copper was heated from 20∘ to 80∘. How much energy was used to heat Cu? (Specific heat capacity of Cu is 0.092cal/g∘C).

The correct option is B 27.6 calGiven,Mass, m=5gSpecific heat capacity, C=0.092cal/g0CChange in temperature, ΔT=800C−200C=6000CHeat required, Q=?We have the equation,Q=m×C×ΔTThen,Q=5×0.092×60=27.6cal

$5$ g of copper was heated from $20^{\circ}$ to $80^{\circ}$ . How much energy was used to heat Cu? (Specific heat capacity of Cu is $0.092 c a l / g^{\circ} C$ ).