why is 70eV mostly used in gc m
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why is 70eV mostly used in gc ms

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- a 2,294kg sample of water at 0C is cooled to -36 C and freezes in the process. how much heat is liberated? For water Lf = 334 kj/kg and Lv = 2257 kj/kg. specfic heat for ice is 2050 j/kg x KHow much energy is required to heat 7.5 kg of ice from -30 oC to steam at 200 oC?your team is developing insulation for the interior of a spaceship for a trip to Mars. Should you focus on materials with high or low values of Cp? Why?
- Jou pour of hat coffee into 750 aluminum SesL mess is 2sOg. You measured He 90°C. You thee cup -hose mass îs +emp of the estfee to be place 100g - (0°e into the coffee, wlaat will be the final initial temp ice, whese is eguilibriom te mp? :4186 Cice i2000 Car= 300 Licaz 334000Q24: Which of the following is a statement of the fist law of thermodipanis!O The disorder of the universe is constantO The universe is stableO Energy cannot be transferred or transformed.O Energy cannot be created or destroyed.Calculate the total amount of energy (in kJ) required to heat 0.2 kg of Mercury from its melting point at -39 oC to its boiling point at +357 oC if its specific heat capacity is 140 J kg-1 K-1.