A Glass Beaker of Unknown Mass Contains 74 $20.0 ^ { \circ } \mathrm { C }$

question 63

Multiple Choice

A glass beaker of unknown mass contains 74.0 ml of water. The system absorbs 2000.0 cal of heat and the temperature rises $20.0 ^ { \circ } \mathrm { C }$ as a result. What is the mass of the beaker? The specific heat of glass is $0.18 \mathrm { cal } / \mathrm { g } \cdot { } ^ { \circ } \mathrm { C }$ and that of water is $1.0 \mathrm { cal } / \mathrm { g } \cdot \mathrm { C } ^ { \circ }$

• A) 560 g
• B) 540 g
• C) 140 g
• D) 270,000 g

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