Question

when karl kaveman adds chilled grog to his new granite mug, he removes 10.9 kj of energy from the mug. if it has a mass of 625 g and was at 25°c, what is its new temperature? specific heat capacity of granite

Answer 1

Whenever Karl Kaveman adds cooled grog into his handmade granite mug, he lowers the temperature to 3°C and expels 10.9 kJ of energy.

What type of stone is referred to as granite?

Granite is a typical igneous rock that is hard, coarse-grained, and predominantly composed of talc, microcline, and quartz. Limestone has been used in building from the beginning of time. It is a time-tested and durable material for construction that will outlast the buildings in which it is used.

Briefing:

We can that heat Q=m dT

Where m is the mass = specific heat capacity

dT = Temperature difference

Here, we've provided m=625 g =.625 kg

specific heat of granite =0.79 J/(g-K) = 0.79 KJ/(kg-k)

T₁ = 25°C

T₂ = we have to find

we have also given Q=10.9 KJ

10.9=0.625×0.79×(25-T₂)

25-T₂ = 22

T₂ = 3°C

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The complete question is-

When Karl Kaveman adds chilled grog to his new granite mug, he removes 10.9 kJ of energy from the mug. If it has a mass of 625 g and was at 25 °C, what is its new temperature? Specific heat capacity of granite = 0.79 J/(g·K)