lindseykmckellar lindseykmckellar
  • 23-10-2019
  • Chemistry
contestada

a sample Of water is heated by 520 cal in the temperature rises by 10 K what is the mass of the water sample in grams?

Respuesta :

nkirotedoreen46
nkirotedoreen46 nkirotedoreen46
  • 04-11-2019

Answer:

52 g water

Explanation:

In this question we are given;

Amount of heat, Q = 520 calories

Change in temperature, K = 10 K

We are required to calculate the mass of water.

Amount of heat is calculated by multiplying mass by specific heat capacity by change in temperature.

Q = m × c × Δt

The specific heat capacity,c of water = 1 Cal/g°C or 4.184 J/g°C

Rearranging the formula;

m = Q ÷ cΔt

   = 520 Cal ÷ (1 Cal/g°C×10 K)

   = 52 g

Thus, the mass of water sample is 52 g

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