If the calorimeter is not well insulated, how will heat from the air in the laboratory affect the experimental value for the latent heat of fusion of ice? Explain
The calculated value for the heat of fusion of ice will be less because part of the heat
transferred to melt the ice and raise the temperature of the melted ice water will be
supplied from the air in the laboratory; therefore, not as much heat will come from
the water and calorimeter cup. This will make the calculated value low.
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It is a common misconception that the purpose of an astronomical telescope is to _______________ images
Fill in the blank(s) with correct word
Two sounds of the same intensity are added together. The intensity of the resulting sound is how many decibels greater than the intensity of one of the original sounds? The resulting sound
1.will have twice the decibel level as one of the original sounds. 2.will have the same decibel level as one of the original sounds. 3.will be two decibels higher than the original sound. 4.will be three decibels higher than the original sound.
Nuclear Fission and Fusion: What is the meaning of the term "critical mass" in regard to nuclear fission?
A. This is the mass of the "critical" elements in a reactor, i.e., the uranium or plutonium. B. This is the minimum amount of fissionable material required to sustain a chain reaction. C. This is the amount of mass needed to make a power reactor economically feasible. D. This is the amount of material that is just on the verge of becoming radioactive.
Light having a frequency in vacuum of 6.0 × 1014 Hz enters a liquid of refractive index 2.0. In this liquid, its frequency will be
A) 12 × 1014 Hz B) 6.0 × 1014 Hz C) 3.0 × 1014 Hz D) 1.5 × 1014 Hz E) None of the above choices are correct.