Calculate the Number of Moles of Photons Required to Heat

Multiple Choice

Calculate the number of moles of photons required to heat 245 mL of water from 22.5°C to its boiling temperature in a microwave oven, which operates at a frequency of 12.50 cm. Assume the density of water is 1.0 g/mL and the specific heat capacity of water is 4.184 J/g ? °C.Hint: Water boils at 100 ^{°C. Watch your units when solving this problem.}

A) 4.55 × 10²¹ mol photons
B) 3.04 × 10¹⁸ mol photons
C) 7.79 × 10^-5 mol photons
D) 8.30 × 10⁴ mol photons
E) 5.53 × 10² mol photons