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Umnica [9.8K]
3 years ago
15

Using properties to find the sum and product of 5 times 23 times 2

Mathematics
1 answer:
Nonamiya [84]3 years ago
7 0
The Answer is 230 23*5 is 115*2 is 230
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When an amount of heat Q (in kcal) is added to a unit mass (kg) of a
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Answer:

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Step-by-step explanation:

The given parameters of the question are;

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The heat transfer rate for 1 kg of glass at 20.0 °C, dQ/dt = 12.9 kcal/min

Given that both dQ/dT and dQ/dt are known, we have;

\dfrac{dQ}{dT} = 0.18 \, (kcal/ ^{\circ} C)

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Therefore, we get;

\dfrac{\dfrac{dQ}{dt} }{\dfrac{dQ}{dT} } = {\dfrac{dQ}{dt} } \times \dfrac{dT}{dQ} = \dfrac{dT}{dt}

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For the sample, we have the change in temperature per minute, dT/dt, presented as follows;

\dfrac{dT}{dt}  = 71.\overline 6 \, ^{\circ } C/min

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Step-by-step explanation:

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