AH1 = m * c1 * AT1 calculate this for ice (-25C to 0C) AH2 = AHfus(1 mole)=6.01 kJ = 6010 J AH3 = m *c3 * AT3 calculat this for water (0C to 100C) AH4 = AHvap(1mole)=40.67 kJ = 40670 J AH5= m * c5 * AT5 calculate this for steam (100C to 125C) Sum ---- AH1+AH2+AH3+AH4+AH5 Data m=18g (1mole water) c1=specific heat ice= 2.09 J/g K c3=specific heat water= 4.18 J/g K c5=specific heat steam= 1.84 J/g K AT = (Tend - Tinitial) as this is a difference between temperatures it doesn't matter the units Celsius or Kelvin. Kelvin (K)=Celsius (C)+273.15 AT1 = 0C - (-25C)= 25C= 273.15K - 248.15K= 25K AT3= 100C - 0C = 100C= 100K AT5= 125C - 100C= 25C=25K
The correct description of the role that enzymes play in biochemical reactions would be B. Enzymes bond with one or more reactants and lower the activation energy needed for the reaction.
- Separated by an actual physical barrier <span>- Geographic isolation can be overcome in some circumstances but the majority of the population will be isolated and therefore will diverge into different species </span> did this help if it did leave a thanks
The goodness of fit - it is proposed by Thomas and chess in 1977. This term is used to defined coordination of child temperament and environment. while poorness of fit defines when temperament is not accommodated.
The goodness of fit is generally good for children's best learning. it is basically related to individual temperament and their social environment
