Initially there are 3 [kg] of gas at a pressure of 200 [kPa] and specific volume of 1.5 [m3/kg] contained within a piston cylinder assembly. The gas undergoes a polytropic process for which P∀2=constant until the specific volume is 1.0 [m3/kg] and the specific internal energy decreases by 150 [kJ/kg]. Find the amount of heat transfer between the system and surroundings in [kJ].

What occurs during a combustion reaction

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The dipole moment of the water molecule (h2o) is 6.17x10^-30 c.m. consider a water molecule located at the origin whose dipole moment p points in the +x-direction. a chlorine ion ( of charge-1.60x10^-19c , is located at x=3.00x10^-9m . assume that is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used. a) find the magnitude of the electric force that the water molecule exerts on the chlorine ion. b) what is the direction of the electric force. -x-direction or +x-direction c) is this force attractive or repulsive?