A device which converts chemical energy into electrical energy is called _____. A. motor B. generator C. moving-coil meter D. battery <!--more-->
Radioactivity was discovered by _____. A. Kelvin B. Thomson C. Rutherford D. Bacquerel <!--more-->
For a fixed mass of gass at constant temperature, if we decrease volume, the pressure will______.
A. also decrease
B. increase
C. remains constant
D. none of these
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