Fifty Grams of Ice at 0 $\degree$ C Is Placed in a Thermos Bottle Containing One Hundred

question 18

Multiple Choice

Fifty grams of ice at 0 $\degree$ C is placed in a thermos bottle containing one hundred grams of water at 6 $\degree$ C. How many grams of ice will melt? The heat of fusion of water is 333 kJ/kg and the specific heat is 4190 J/kg .K.

• A) 7.5
• B) 2.0
• C) 8.3
• D) 17
• E) 50

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Definitions:

Direct Material Quantity Variance

The difference between the budgeted amount of materials needed for production and the actual amount used, expressed in cost or quantity.

Standard Price

The predetermined cost that a company expects to pay for materials, labor, and other inputs, used as a benchmark for variance analysis.

Actual Grams

The real-world measurement of weight for materials used in a production or laboratory setting, as opposed to theoretical or estimated amounts.

Labour Efficiency Variance

The difference between the actual labor hours spent on production and the expected (or standard) labor hours, multiplied by the standard labor rate.