Answer
a) 10.89 cal
b) 1485 joule
c) 10.46 * 10^3 cal
d) 0.89956 kJ
Work Step by Step
We use unit conversions to obtain:
1 cal = 4.184 joule and 1 joule = 0.239 cal.
a) 45.6 J = 45.6 * 0.239 cal = 10.89 cal
b) 355 cal = 355 * 4.184 joule = 1485 joule
c) 43.8 kJ = 43.8 * 1000 * 0.239 = 10.46 * 10^3 cal
d) 215 cal = 215 * 4.184 joules = 899.56 joules = 0.89956 kJ
