How much heat energy is required to raise the temperature of unit mass of substance by 1- C -A- 4-2 - 103 J - kg - kB- 4-2 - 102 J - kg - kC- 4-2 - 10-2 J - kg - kD- 4-2 - 104 J - kg - k

The correct option is A 4.2× 10^3 J/kg kThe CGS unit of specific heat is Cal/g ^ ∘ C and SI unit of it of J/Kg K. 1 Cal/g ^ ∘ C=1 Kcal/kg K =4.2× 10^3 J/kg K ...

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Standard X

Physics

Electric Power

How much heat...

Question

How much heat energy is required to raise the temperature of unit mass of substance by $1^{\circ} C$ ?

4.2 \times 10^{- 2} J / k g - k

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4.2 \times 10^{3} J / k g - k

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4.2 \times 10^{2} J / k g - k

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4.2 \times 10^{4} J / k g - k

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Solution

The correct option is B $4.2 \times 10^{3} J / k g - k$
The CGS unit of specific heat is $C a l / g^{\circ} C$ and SI unit of it of J/Kg K.
$1 C a l / g^{\circ} C = 1 K c a l / k g K$
$= 4.2 \times 10^{3} J / k g K$

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How much heat energy is required to raise the temperature of unit mass of substance by 1∘C?

The correct option is B 4.2×103 J/kg−kThe CGS unit of specific heat is Cal/g ∘C and SI unit of it of J/Kg K. 1 Cal/g ∘C=1 Kcal/kg K =4.2×103 J/kg K

How much heat energy is required to raise the temperature of unit mass of substance by $1^{\circ} C$ ?

The correct option is B $4.2 \times 10^{3} J / k g - k$
The CGS unit of specific heat is $C a l / g^{\circ} C$ and SI unit of it of J/Kg K.
$1 C a l / g^{\circ} C = 1 K c a l / k g K$
$= 4.2 \times 10^{3} J / k g K$