1 calorie is equal to

4.2 J

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0.42 J

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420 J

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4200 J

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Solution

The correct option is A
4.2 J

The quantity of heat energy required to raise the temperature of 1 g of pure water through 1 °C is called a calorie.
1 calorie is equal to 4.186 J (4.2 J approx)
Hence the correct answer is (A) 4.2 J.

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Similar questions

Q. A calorie is a unit of heat or energy and it equals about

4.2 J

where

1 J = 1 k g m^{2} s^{- 2}

. Suppose we employ a system of units in which the unit of mass equals

α k g

, the unit of length equals

β

m

, the unit of time is

γ s

. Show that a calorie has a magnitude

4.2

α^{- 1} β^{- 2} γ^{2}

in terms of the new units.

A calorie is a unit of heat or energy and it equals about 4.2 J where 1J = 1 kg m²s^–2. Suppose we employ a system of units in which the unit of mass equals α kg, the unit of length equals β m, the unit of time is γ s. Show that a calorie has a magnitude 4.2 α^–1 β^–2 γ²in terms of the new units.

Q. 1 Calorie is equal to joules
.

Q. One calorie is equal to .

Q. 1 calorie is equal to ___________.

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1 calorie is equal to

The correct option is A 4.2 JThe quantity of heat energy required to raise the temperature of 1 g of pure water through 1 °C is called a calorie.1 calorie is equal to 4.186 J (4.2 J approx) Hence the correct answer is (A) 4.2 J.

The correct option is A
4.2 J

The quantity of heat energy required to raise the temperature of 1 g of pure water through 1 °C is called a calorie.
1 calorie is equal to 4.186 J (4.2 J approx)
Hence the correct answer is (A) 4.2 J.