題目列表(包括答案和解析)
A.C(金剛石)+O2(g) CO2(g) ΔH1=a kJ·mol-1?(a<0)?
B.C(石墨)+O2(g) CO2(g) ΔH=b kJ·mol-1?(b>0)?
C.C+O2CO2(g) ΔH3=c kJ·mol-1?(c<0)?
D.C(金剛石) C(石墨) ΔH4=dkJ·mol-1 (d>0)?
A.C (金剛石)+O2(g)====CO2(g);ΔH1=a kJ·mol-1 (a<0)
B.C (石墨)+O2(g)====CO2(g);ΔH2=b kJ·mol-1 (b>0)
C.C +O2====CO2(g);ΔH3=c kJ·mol-1 (c<0)
D.C (金剛石)====C (石墨);ΔH4=d kJ·mol-1 (d>0)
A.C(金剛石)+O2(g)=CO2(g);ΔH1 =a kJ·mol-1(a<0)??
B.C(石墨)+O2(g)=CO2(g);ΔH2 =b kJ·mol-1(b>0)?
C.C+O2=CO2(g);ΔH3=c kJ·mol-1(c<0)?
D.C(金剛石)= C(石墨);ΔH4=d kJ·mol-1(d>0)
分析下圖所示各物質(zhì)能量變化關(guān)系,下列熱化學方程式正確的是( 。?
A.C(金剛石)+O2(g)CO2(g) ΔH1=a kJ·mol-1?(a<0)?
B.C(石墨)+O2(g)CO2(g) ΔH=b kJ·mol-1?(b>0)?
C.C+O2CO2(g) ΔH3=c kJ·mol-1?(c<0)?
D.C(金剛石)C(石墨) ΔH4=dkJ·mol-1 (d>0)?
A.C(金剛石)+O2(g)CO2(g) ΔH1=a kJ·mol-1?(a<0)? |
B.C(石墨)+O2(g)CO2(g) ΔH=b kJ·mol-1?(b>0)? |
C.C+O2CO2(g) ΔH3=c kJ·mol-1?(c<0)? |
D.C(金剛石)C(石墨) ΔH4=dkJ·mol-1 (d>0)? |
湖北省互聯(lián)網(wǎng)違法和不良信息舉報平臺 | 網(wǎng)上有害信息舉報專區(qū) | 電信詐騙舉報專區(qū) | 涉歷史虛無主義有害信息舉報專區(qū) | 涉企侵權(quán)舉報專區(qū)
違法和不良信息舉報電話:027-86699610 舉報郵箱:58377363@163.com