Question

Subtracting x2 - y2 + z2 from x2 - y2 - z2 the resultant expression is

Answer 1

Step-by-step explanation:

Mass of Water = 2000g

If he had water,

Required heat = msΔT =2000×1×(100−0)=200000calories

If he had ice,

Required Heat = Heat to melt Ice(mL) + Heat to raise temperature from 0

o

C to 100

o

C (msΔT)

Required heat =(2000×80)+(2000×1×(100−0))=160000+200000=360000calories