A Single Pulse of a Laser Yields an Average of 5.00

question 57

Multiple Choice

A single pulse of a laser yields an average of 5.00 * 10¹⁸ photons with $\lambda$ = 633 nm. If melting ice to water at 0°C requires 6.01 kJ/mol, what is the fewest number of laser pulses need to melt 10.0 g of ice?

• A)3830
• B)3340
• C)38300
• D)2120
• E)212

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