Acompound has a molecular weight of 50 kg/kmol a normal melting point of 300 k a normal boiling point of 350 k a constant heat capacity in the solid phase of cp 3000 j/kg k a constant heat capacity in the liquid phase of cp 3600 j/kg k a constant density in the solid phase ofp 640 kg/m' a constant density in the liquid phase of p - 480 kg/m3 . an ideal gas heat capacity of cp* 4186.8-62874 13.56x10%r j/kg. k, with t representing the temperature in kelvin an enthalpy of fusion - 175 kj/kg at atmospheric pressure an enthalpy of vaporization 300 kj/kg at atmospheric pressure ° vapor phase can be approximated by the ideal gas law a. what is the change in internal energy when this compound boils at atmospheric pressure? b. the compound is initially at 278 k. if the pressure is constant at p 101.325 kpa throughout the process, and the specific enthalpy of the compound is increased by 815 kj/kg, what is the final temperature?

What is the relation between concentration of reactants and the rate of chemical reaction?

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Plz me ! 1 which of earths spheres contains most of its mass? a atmosphere b hydrosphere c geosphere* d biosphere 2 erosion and weathering are examples of which types of forces? a constructive forces b destructive forces* c gravitational forces d inertia-related forces 3 which of the following statements about earths atmosphere is true? a earths atmosphere contains 78% water vapor which is essentail to life b earths atmosphere contains 21% oxygen c earths atmosphere contains carbon dioxide which all life forms require d earths atmosphere allows radiation from the sun to pass through it and warm earths surface* 4 the strenght of the force of gravity between two objects is determined by which of the following factors? select all that apply a the messes of the objects* b the distance between the objects* c the volumes of the objects d the surface area of the objects 5 earth and moon are kept in there respective orbits due to the influence of a inertia b gravity c gravity and inertia* d neither gravity or inertia if you answer all questions right i will give