A 20-Kg Ice Cube At At 0.0 $0.0 ^ { \circ } \mathrm { C }$

question 42

Multiple Choice

A .20-kg ice cube at $0.0 ^ { \circ } \mathrm { C }$ has sufficient heat added to it to cause total melting, and the resulting water is heated to $70.0 ^ { \circ } \mathrm { C }$ How much heat is added? For water $L _ { F } = 334,000 \mathrm {~J} / \mathrm { kg } , L \mathrm {~V} = 2.256 \times 10 ^ { 6 }$ $\mathrm { J } / \mathrm { kq } _ { \text {, the } c } = 4.186 \times 10 ^ { 3 } \mathrm {~J} / \mathrm { kq } \cdot \mathrm { C } \text {. }$

• A) 81 kJ
• B) 59 kJ
• C) 130 kJ
• D) 14,000 kJ

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Definitions:

Psychological Magnitude

The quantifiable aspect of a psychological factor, such as the intensity of a sensation, emotion, or perception.

Standard Stimulus

A stimulus used as a benchmark in experiments to measure how different stimuli can influence behavior or perception compared to this control stimulus.

Constant

A value or quantity that remains unchanged within a given context or under specified conditions.

Psychophysics

An approach to perception that relates the characteristics of physical stimuli to the sensory experiences they produce.