Question

You wish to cook some pasta and so take some water and heat it on a stove. If you use 2000 grams of water with an initial temperature of zero degrees C, how much energy would you need to add to raise the temperature to 100° C is all of the stove energy went into heating the water?

Answer 1

the stove energy went into heating water is 837.2 kJ.

Step-by-step explanation:

given,

mass of water = 2000 grams

initial temperature = 0° C

Final temperature = 100° C

specific heat of water (c) = 4.186 joule/gram

energy = m c Δ T

= 2000 × 4.186 × (100° - 0°)

= 837200 J

= 837.2 kJ

hence, the stove energy went into heating water is 837.2 kJ.