Natural gas costs $4.

To calculate the cost of heating water using natural gas:

Step 1: Compute Energy Required to Heat the Water

Given:

Mass of water= 500 L = 500 kg

Temperature rise (ΔT)= 50°C - 18°C = 32°C

Specific heat of water (Cp)= 4.2 kJ/kg-°C

Energy Required (Q)=m×Cp×ΔT

=500×4.2×32

=67,200 kJ=67.2 MJ

A white paper with black text and numbers AI-generated content may be incorrect.