A Rod, with Sides Insulated to Prevent Heat Loss, Has $7.05 \mathrm {~cm} ^ { 2 }$

question 80

Short Answer

A rod, with sides insulated to prevent heat loss, has one end immersed in boiling water at 100°C and the other end in a water-ice mixture at 0°C. The rod has uniform cross-sectional area $7.05 \mathrm {~cm} ^ { 2 }$ and length $87 \mathrm {~cm} .$ The heat conducted by the rod melts the ice at a rate of 1.0 g every 11 seconds. What is the thermal conductivity of the rod? Recall that the heat of fusion of water is 3.34 × 10⁵ J/kg.

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Definitions:

Sample Size

The number of observations or participants in a study, significant for determining the study's statistical power.

Internal Validity

The extent to which a study can demonstrate a clear cause-and-effect relationship, limiting the impact of external variables.

Dependent Variables

In an experiment, these are the variables that are tested and measured to see how they are affected by changes in independent variables.

Cognitive Analysis

The process of breaking down mental activities and thought processes into their components for understanding.